5 papers
Deterministic preparation of spin qubits in droplet etched GaAs quantum dots using quasi-resonant excitation
Caspar Hopfmann, Nand Lal Sharma, Weijie Nie +3
We present a first comprehensive study on deterministic spin preparation employing excited state resonances of droplet etched GaAs quantum dots. This achievement facilitates future…
Maximally entangled and GHz-clocked on-demand photon pair source
Caspar Hopfmann, Weijie Nie, Nand Lal Sharma +3
We present a 1 GHz-clocked, maximally entangled and on-demand photon pair source based on droplet etched GaAs quantum dots using two-photon excitation. By employing these GaP micro…
Entanglement Swapping with Semiconductor-generated Photons
Michael Zopf, Robert Keil, Yan Chen +4
Transferring entangled states between photon pairs is essential for quantum communication technologies. Semiconductor quantum dots are the most promising candidate for generating p…
Tuning emission energy and fine structure splitting in quantum dots emitting in the telecom O-band
Bianca Höfer, Fabian Olbrich, Jan Kettler +7
We report on optical investigations of MOVPE-grown InGaAs/GaAs quantum dots emitting at the telecom O-band that were integrated onto uniaxial piezoelectric actuators. This promisin…
Effects of variable anisotropic-strain on the emission of neutral excitons confined in epitaxial quantum dots
J. D. Plumhof, V. Krapek, F. Ding +8
We study the effect of elastic anisotropic biaxial strain on the light emitted by neutral excitons confined in different kinds of semiconductor quantum dots (QDs). We find that the…